Are New Portable Breath Tests Reliable?

Earlier this year one of the largest manufacturers of breath testing devices in DUI cases announced they were introducing a new portable screener to the market, the ASV.  The company released data that the device is reliable to less than .005%, however many DUI defense attorneys are skeptical.  The science just does not support that level of accuracy says one Beverly Hills DUI Lawyer .  Though there are very few studies to look at in the area of portable breath machines, the commonly accepted error rate is .01 to .015, no where near the levels the manufacturer touts.  With this new technology will no doubt come a number of challenges.